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The overheating of boiler and kiln surface may be caused by the following reasons: 1. The thermal insulation material inside the furnace is damaged or insufficient; 2. The non water-cooled wall furnace type working medium is poorly heated; 3. Poor heat dissipation inside the boiler; 4. Boiler operation load is too large; 5. The boiler structure design is unreasonable. After checking and confirming the cause of furnace wall normal temperature, how can we prevent and remedy it? If the thermal insulation materials inside the furnace are damaged or insufficient, refractory castables, refractory bricks or castables, refractory bricks and thermal insulation fiber felt are generally used in the furnace to obtain the thermal insulation effect. During the use of the furnace, once the refractory bricks are expanded and shrunk due to heat, stress cracking, surface oxidation, etc

2024/03/18 15:24:55

Stainless steel is defined in GB/T20878-2007 as a steel characterized by stainless steel and corrosion resistance, with chromium content of at least 10.5% and carbon content of no more than 1.2%. Stainless Steel is the abbreviation of stainless steel and acid resistant steel. The steel that is resistant to weak corrosive media such as air, steam, water, or stainless steel is called stainless steel; The steel that is resistant to chemical corrosion media (acid, alkali, salt and other chemical etching) is called acid resistant steel. However, in actual use, stainless steel is not as "stainless" as its name, especially in work

2022/10/19 10:15:11

It is of great significance for energy conservation and environmental protection to reduce the oil loss caused by breathing in oil tanks. Most of the storage methods used for general oil products are normal pressure storage, except for some highly volatile chemical products and liquefied petroleum gas stored in containers that can withstand high pressure. At present, about 80% of oil tanks belong to fixed roof fully sealed metal tanks. In summer, the outdoor temperature is as high as 38 ℃, and the temperature of the steel plate on the topping surface exposed to direct sunlight can be as high as 60 ℃. At such a high topping temperature, the mixed air pressure in the space above the liquid level inside the tank will reach or exceed the control pressure of the tank safety device

2020/12/19 21:49:29